| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyethylene-based encapsulant sheet for solar cell module subjected to crosslinking by irradiation of ionization radiation, and having heat resistance, adhesion and molding characteristics, under the high productivity.SOLUTION: A method of producing an encapsulant sheet for solar cell includes a step of forming a non-crosslinked multilayer sheet by laminating an intermediate layer formed by melting a polyethylene resin for intermediate layer having a density of 0.870-0.970 g/cm, and an outermost layer formed by melting a polyethylene resin for outermost layer having MFR larger than that of the polyethylene resin for intermediate layer, and a step of crosslinking the non-crosslinked multilayer sheet by irradiation of ionization radiation. The polyethylene resin for outermost layer is produced by mixing two polyethylene resins having MFRs different from each other. |
